Negative times a Negative = Positive
Positive times a Positive = Positive
Negative times a Positive = Negative
Positive times a Negative = Negative
Option A:
Negative * Positive * Negative * Positive
Negative * Negative * Positive
Positive * Positive
Positive
Option B:
Anything times 0 is 0, this is incorrect.
Option C:
Negative * Negative * Negative * Negative
Positive * Negative * Negative
Negative * Negative
Positive
Option D:
Negative * Positive * Negative * Negative
Negative * Negative * Negative
Positive * Negative
Negative
Therefore your answer is D.
Answer:
13
Step-by-step explanation:
when you multiply 65 by .2 that is the predicted number of right answers if they were to guess on every one.
Answer: 1.018
Step-by-step explanation:
The pH level of a substance indicates the concentration of hydrogen ions (
) in a solution and is calculated by:

In this case the hydrogen ion concentration is
, where
. Hence:

This means this new substance is acid
Answer:
they each get 1 slice because the father took half the pizza.
1. 30/120
2. 30/100
Have a gold day:)